ALSN Allison Transmission Holdings, Inc.

NYSE
$126.94

Allison Transmission Holdings, Inc. (ALSN) Institutional Ownership

What the institutions did with ALSN last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.

Managers compared
618
filed both this quarter and last
Managers holding
561
+17 on the quarter
Buyers
248
74 opened new
Sellers
290
57 sold out entirely
Buyer share
46.1%
of managers who traded it
Breadth
-7.8
net buyers, as a share of those trading

Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.

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Ownership map

Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.

Cut Unchanged Added Color saturates at ±50%.

Largest holders

Manager Shares % of reported
FMR LLC 12.4M 14.5%
VANGUARD PORTFOLIO MANAGEMENT LLC 4.0M 4.7%
BlackRock, Inc. 4.0M 4.6%
VANGUARD CAPITAL MANAGEMENT LLC 3.7M 4.4%
Boston Partners 3.2M 3.7%
FULLER & THALER ASSET MANAGEMENT, INC. 2.6M 3.1%
LSV ASSET MANAGEMENT 2.2M 2.6%
GEODE CAPITAL MANAGEMENT, LLC 2.0M 2.4%
RENAISSANCE TECHNOLOGIES LLC 1.9M 2.3%
DIMENSIONAL FUND ADVISORS LP 1.9M 2.2%
LONDON CO OF VIRGINIA 1.8M 2.1%
FIRST TRUST ADVISORS LP 1.8M 2.1%
STATE STREET CORP 1.5M 1.8%
WASATCH ADVISORS LP 1.5M 1.8%
Stockbridge Partners LLC 1.5M 1.8%
BANK OF MONTREAL /CAN/ 1.4M 1.6%
NORGES BANK 1.3M 1.5%
FEDERATED HERMES, INC. 1.2M 1.4%
AQR CAPITAL MANAGEMENT LLC 1.1M 1.3%
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 877.3K 1.0%
MORGAN STANLEY 851.5K 1.0%
Capital International Investors 846.0K 1.0%
CAPTRUST FINANCIAL ADVISORS 825.5K 1.0%
Qube Research & Technologies Ltd 824.6K 1.0%
Quantinno Capital Management LP 767.3K 0.9%

Largest changes

Manager Action Previous Current Change
Capital International Investors New 0 846.0K +846.0K
WASATCH ADVISORS LP Increased 734.3K 1.5M +776.2K
FULLER & THALER ASSET MANAGEMENT, INC. Reduced 3.4M 2.6M -772.5K
Caisse de depot et placement du Quebec Sold Out 546.3K 0 -546.3K
Stockbridge Partners LLC Increased 1.0M 1.5M +469.6K
JANE STREET GROUP, LLC Increased 6.8K 441.4K +434.6K
UBS Group AG Increased 370.3K 739.5K +369.2K
BANK OF AMERICA CORP /DE/ Reduced 1.1M 737.2K -363.0K
RENAISSANCE TECHNOLOGIES LLC Reduced 2.3M 1.9M -321.4K
Qube Research & Technologies Ltd Increased 504.5K 824.6K +320.1K
Boston Partners Increased 2.9M 3.2M +319.9K
FIFTHDELTA Ltd Increased 462.9K 760.5K +297.6K
MANUFACTURERS LIFE INSURANCE COMPANY, THE Increased 19.7K 315.1K +295.4K
MARSHALL WACE, LLP Reduced 335.7K 44.6K -291.2K
MILLENNIUM MANAGEMENT LLC Increased 240.8K 526.0K +285.2K
Balyasny Asset Management L.P. Reduced 848.3K 596.0K -252.3K
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP Reduced 802.8K 555.0K -247.8K
Freestone Grove Partners LP Reduced 512.2K 272.7K -239.5K
Invesco Ltd. Reduced 929.7K 705.5K -224.2K
FIRST TRUST ADVISORS LP Reduced 2.0M 1.8M -220.0K
VANGUARD PORTFOLIO MANAGEMENT LLC Reduced 4.2M 4.0M -203.4K
Assenagon Asset Management S.A. New 0 201.0K +201.0K
MORGAN STANLEY Increased 659.0K 851.5K +192.5K
BANK OF MONTREAL /CAN/ Reduced 1.6M 1.4M -187.4K
BlackRock, Inc. Increased 3.8M 4.0M +187.0K
GEODE CAPITAL MANAGEMENT, LLC Reduced 2.2M 2.0M -176.3K
CITADEL ADVISORS LLC Increased 304.7K 478.9K +174.1K
D. E. Shaw & Co., Inc. Reduced 204.2K 40.9K -163.3K
HSBC HOLDINGS PLC Reduced 223.9K 65.4K -158.5K
Covalis Capital LLP New 0 146.5K +146.5K
JACOBS LEVY EQUITY MANAGEMENT, INC Sold Out 143.1K 0 -143.1K
SUSQUEHANNA INTERNATIONAL GROUP, LLP Increased 164.4K 301.1K +136.7K
ADAGE CAPITAL PARTNERS GP, L.L.C. Increased 80.0K 215.0K +135.0K
Distillate Capital Partners LLC Sold Out 135.0K 0 -135.0K
ISTHMUS PARTNERS, LLC Reduced 139.3K 8.8K -130.5K
HARRIS ASSOCIATES L P Reduced 532.0K 402.8K -129.2K
GOLDMAN SACHS GROUP INC Increased 298.2K 414.9K +116.8K
Empowered Funds, LLC Reduced 227.3K 120.2K -107.1K
AQR CAPITAL MANAGEMENT LLC Reduced 1.2M 1.1M -105.0K
Quantinno Capital Management LP Reduced 867.8K 767.3K -100.5K
NEUBERGER BERMAN GROUP LLC Increased 209.8K 307.9K +98.1K
Lighthouse Investment Partners, LLC Sold Out 97.9K 0 -97.9K
Driehaus Capital Management LLC Reduced 219.1K 123.2K -95.9K
Polaris Capital Management, LLC Reduced 258.6K 164.9K -93.7K
PRICE T ROWE ASSOCIATES INC /MD/ Reduced 365.3K 274.5K -90.8K
Point72 Asset Management, L.P. Increased 63.8K 153.1K +89.4K
AMERIPRISE FINANCIAL INC Increased 94.1K 182.0K +87.9K
Walleye Capital LLC Reduced 208.0K 125.7K -82.2K
LONDON CO OF VIRGINIA Reduced 1.9M 1.8M -80.7K
Nuveen, LLC Reduced 239.7K 160.0K -79.7K
Public Sector Pension Investment Board Reduced 121.2K 42.1K -79.1K
FIL Ltd Reduced 365.5K 289.0K -76.5K
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Increased 38.7K 115.0K +76.3K
Turas Capital Management LP New 0 73.2K +73.2K
TUDOR INVESTMENT CORP ET AL New 0 68.0K +68.0K
Aptus Capital Advisors, LLC New 0 67.2K +67.2K
LSV ASSET MANAGEMENT Increased 2.1M 2.2M +66.4K
MAC Alpha Capital Management, LP Increased 98.0K 156.2K +58.2K
CANADA PENSION PLAN INVESTMENT BOARD Increased 62.4K 120.6K +58.2K
ALLIANCEBERNSTEIN L.P. Increased 279.0K 335.4K +56.4K

13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.